1, letters have the advantages of geometric modeling characteristics and various morphological changes, and the overall image of letter signs has the basic characteristics of concise modern graphics. The letter modeling in the logo should not only retain the traditional basic characteristics, but also have modern aesthetic feeling.

2. The logo design of modern letter modeling is varied, which can be divided into three aspects according to the attributes of letters, namely, sound, shape and meaning. But most logo designs with English letters as design elements will start with "shape" and "meaning". According to the artistic expression, it can be divided into single letter type and combined letter type.

3. From the point of view of composition, the shape of letters has the characteristics of plane composition. In modern logo design, the company name or logo is usually simplified to the form of letters, and then the patterns with distinctive personality and aesthetic feeling are skillfully combined by using the changing characteristics of letters themselves.